diff options
Diffstat (limited to 'hw/ppc/pnv_psi.c')
| -rw-r--r-- | hw/ppc/pnv_psi.c | 425 |
1 files changed, 397 insertions, 28 deletions
diff --git a/hw/ppc/pnv_psi.c b/hw/ppc/pnv_psi.c index 44bc0cbf58..5a923e4151 100644 --- a/hw/ppc/pnv_psi.c +++ b/hw/ppc/pnv_psi.c @@ -22,6 +22,7 @@ #include "target/ppc/cpu.h" #include "qemu/log.h" #include "qapi/error.h" +#include "monitor/monitor.h" #include "exec/address-spaces.h" @@ -114,12 +115,18 @@ #define PSIHB_BAR_MASK 0x0003fffffff00000ull #define PSIHB_FSPBAR_MASK 0x0003ffff00000000ull +#define PSIHB9_BAR_MASK 0x00fffffffff00000ull +#define PSIHB9_FSPBAR_MASK 0x00ffffff00000000ull + +#define PSIHB_REG(addr) (((addr) >> 3) + PSIHB_XSCOM_BAR) + static void pnv_psi_set_bar(PnvPsi *psi, uint64_t bar) { + PnvPsiClass *ppc = PNV_PSI_GET_CLASS(psi); MemoryRegion *sysmem = get_system_memory(); uint64_t old = psi->regs[PSIHB_XSCOM_BAR]; - psi->regs[PSIHB_XSCOM_BAR] = bar & (PSIHB_BAR_MASK | PSIHB_BAR_EN); + psi->regs[PSIHB_XSCOM_BAR] = bar & (ppc->bar_mask | PSIHB_BAR_EN); /* Update MR, always remove it first */ if (old & PSIHB_BAR_EN) { @@ -128,7 +135,7 @@ static void pnv_psi_set_bar(PnvPsi *psi, uint64_t bar) /* Then add it back if needed */ if (bar & PSIHB_BAR_EN) { - uint64_t addr = bar & PSIHB_BAR_MASK; + uint64_t addr = bar & ppc->bar_mask; memory_region_add_subregion(sysmem, addr, &psi->regs_mr); } } @@ -152,7 +159,7 @@ static void pnv_psi_set_cr(PnvPsi *psi, uint64_t cr) static void pnv_psi_set_irsn(PnvPsi *psi, uint64_t val) { - ICSState *ics = &psi->ics; + ICSState *ics = &PNV8_PSI(psi)->ics; /* In this model we ignore the up/down enable bits for now * as SW doesn't use them (other than setting them at boot). @@ -205,7 +212,12 @@ static const uint64_t stat_bits[] = { [PSIHB_IRQ_EXTERNAL] = PSIHB_IRQ_STAT_EXT, }; -void pnv_psi_irq_set(PnvPsi *psi, PnvPsiIrq irq, bool state) +void pnv_psi_irq_set(PnvPsi *psi, int irq, bool state) +{ + PNV_PSI_GET_CLASS(psi)->irq_set(psi, irq, state); +} + +static void pnv_psi_power8_irq_set(PnvPsi *psi, int irq, bool state) { uint32_t xivr_reg; uint32_t stat_reg; @@ -260,7 +272,7 @@ void pnv_psi_irq_set(PnvPsi *psi, PnvPsiIrq irq, bool state) static void pnv_psi_set_xivr(PnvPsi *psi, uint32_t reg, uint64_t val) { - ICSState *ics = &psi->ics; + ICSState *ics = &PNV8_PSI(psi)->ics; uint16_t server; uint8_t prio; uint8_t src; @@ -323,7 +335,7 @@ static uint64_t pnv_psi_reg_read(PnvPsi *psi, uint32_t offset, bool mmio) val = psi->regs[offset]; break; default: - qemu_log_mask(LOG_UNIMP, "PSI: read at Ox%" PRIx32 "\n", offset); + qemu_log_mask(LOG_UNIMP, "PSI: read at 0x%" PRIx32 "\n", offset); } return val; } @@ -382,7 +394,7 @@ static void pnv_psi_reg_write(PnvPsi *psi, uint32_t offset, uint64_t val, pnv_psi_set_irsn(psi, val); break; default: - qemu_log_mask(LOG_UNIMP, "PSI: write at Ox%" PRIx32 "\n", offset); + qemu_log_mask(LOG_UNIMP, "PSI: write at 0x%" PRIx32 "\n", offset); } } @@ -392,13 +404,13 @@ static void pnv_psi_reg_write(PnvPsi *psi, uint32_t offset, uint64_t val, */ static uint64_t pnv_psi_mmio_read(void *opaque, hwaddr addr, unsigned size) { - return pnv_psi_reg_read(opaque, (addr >> 3) + PSIHB_XSCOM_BAR, true); + return pnv_psi_reg_read(opaque, PSIHB_REG(addr), true); } static void pnv_psi_mmio_write(void *opaque, hwaddr addr, uint64_t val, unsigned size) { - pnv_psi_reg_write(opaque, (addr >> 3) + PSIHB_XSCOM_BAR, val, true); + pnv_psi_reg_write(opaque, PSIHB_REG(addr), val, true); } static const MemoryRegionOps psi_mmio_ops = { @@ -440,11 +452,20 @@ static const MemoryRegionOps pnv_psi_xscom_ops = { } }; -static void pnv_psi_init(Object *obj) +static void pnv_psi_reset(void *dev) { - PnvPsi *psi = PNV_PSI(obj); + PnvPsi *psi = PNV_PSI(dev); + + memset(psi->regs, 0x0, sizeof(psi->regs)); - object_initialize_child(obj, "ics-psi", &psi->ics, sizeof(psi->ics), + psi->regs[PSIHB_XSCOM_BAR] = psi->bar | PSIHB_BAR_EN; +} + +static void pnv_psi_power8_instance_init(Object *obj) +{ + Pnv8Psi *psi8 = PNV8_PSI(obj); + + object_initialize_child(obj, "ics-psi", &psi8->ics, sizeof(psi8->ics), TYPE_ICS_SIMPLE, &error_abort, NULL); } @@ -457,10 +478,10 @@ static const uint8_t irq_to_xivr[] = { PSIHB_XSCOM_XIVR_EXT, }; -static void pnv_psi_realize(DeviceState *dev, Error **errp) +static void pnv_psi_power8_realize(DeviceState *dev, Error **errp) { PnvPsi *psi = PNV_PSI(dev); - ICSState *ics = &psi->ics; + ICSState *ics = &PNV8_PSI(psi)->ics; Object *obj; Error *err = NULL; unsigned int i; @@ -509,30 +530,38 @@ static void pnv_psi_realize(DeviceState *dev, Error **errp) psi->regs[xivr] = PSIHB_XIVR_PRIO_MSK | ((uint64_t) i << PSIHB_XIVR_SRC_SH); } + + qemu_register_reset(pnv_psi_reset, dev); } +static const char compat_p8[] = "ibm,power8-psihb-x\0ibm,psihb-x"; +static const char compat_p9[] = "ibm,power9-psihb-x\0ibm,psihb-x"; + static int pnv_psi_dt_xscom(PnvXScomInterface *dev, void *fdt, int xscom_offset) { - const char compat[] = "ibm,power8-psihb-x\0ibm,psihb-x"; + PnvPsiClass *ppc = PNV_PSI_GET_CLASS(dev); char *name; int offset; - uint32_t lpc_pcba = PNV_XSCOM_PSIHB_BASE; uint32_t reg[] = { - cpu_to_be32(lpc_pcba), - cpu_to_be32(PNV_XSCOM_PSIHB_SIZE) + cpu_to_be32(ppc->xscom_pcba), + cpu_to_be32(ppc->xscom_size) }; - name = g_strdup_printf("psihb@%x", lpc_pcba); + name = g_strdup_printf("psihb@%x", ppc->xscom_pcba); offset = fdt_add_subnode(fdt, xscom_offset, name); _FDT(offset); g_free(name); - _FDT((fdt_setprop(fdt, offset, "reg", reg, sizeof(reg)))); - - _FDT((fdt_setprop_cell(fdt, offset, "#address-cells", 2))); - _FDT((fdt_setprop_cell(fdt, offset, "#size-cells", 1))); - _FDT((fdt_setprop(fdt, offset, "compatible", compat, - sizeof(compat)))); + _FDT(fdt_setprop(fdt, offset, "reg", reg, sizeof(reg))); + _FDT(fdt_setprop_cell(fdt, offset, "#address-cells", 2)); + _FDT(fdt_setprop_cell(fdt, offset, "#size-cells", 1)); + if (ppc->chip_type == PNV_CHIP_POWER9) { + _FDT(fdt_setprop(fdt, offset, "compatible", compat_p9, + sizeof(compat_p9))); + } else { + _FDT(fdt_setprop(fdt, offset, "compatible", compat_p8, + sizeof(compat_p8))); + } return 0; } @@ -542,6 +571,331 @@ static Property pnv_psi_properties[] = { DEFINE_PROP_END_OF_LIST(), }; +static void pnv_psi_power8_class_init(ObjectClass *klass, void *data) +{ + DeviceClass *dc = DEVICE_CLASS(klass); + PnvPsiClass *ppc = PNV_PSI_CLASS(klass); + + dc->desc = "PowerNV PSI Controller POWER8"; + dc->realize = pnv_psi_power8_realize; + + ppc->chip_type = PNV_CHIP_POWER8; + ppc->xscom_pcba = PNV_XSCOM_PSIHB_BASE; + ppc->xscom_size = PNV_XSCOM_PSIHB_SIZE; + ppc->bar_mask = PSIHB_BAR_MASK; + ppc->irq_set = pnv_psi_power8_irq_set; +} + +static const TypeInfo pnv_psi_power8_info = { + .name = TYPE_PNV8_PSI, + .parent = TYPE_PNV_PSI, + .instance_size = sizeof(Pnv8Psi), + .instance_init = pnv_psi_power8_instance_init, + .class_init = pnv_psi_power8_class_init, +}; + + +/* Common registers */ + +#define PSIHB9_CR 0x20 +#define PSIHB9_SEMR 0x28 + +/* P9 registers */ + +#define PSIHB9_INTERRUPT_CONTROL 0x58 +#define PSIHB9_IRQ_METHOD PPC_BIT(0) +#define PSIHB9_IRQ_RESET PPC_BIT(1) +#define PSIHB9_ESB_CI_BASE 0x60 +#define PSIHB9_ESB_CI_VALID 1 +#define PSIHB9_ESB_NOTIF_ADDR 0x68 +#define PSIHB9_ESB_NOTIF_VALID 1 +#define PSIHB9_IVT_OFFSET 0x70 +#define PSIHB9_IVT_OFF_SHIFT 32 + +#define PSIHB9_IRQ_LEVEL 0x78 /* assertion */ +#define PSIHB9_IRQ_LEVEL_PSI PPC_BIT(0) +#define PSIHB9_IRQ_LEVEL_OCC PPC_BIT(1) +#define PSIHB9_IRQ_LEVEL_FSI PPC_BIT(2) +#define PSIHB9_IRQ_LEVEL_LPCHC PPC_BIT(3) +#define PSIHB9_IRQ_LEVEL_LOCAL_ERR PPC_BIT(4) +#define PSIHB9_IRQ_LEVEL_GLOBAL_ERR PPC_BIT(5) +#define PSIHB9_IRQ_LEVEL_TPM PPC_BIT(6) +#define PSIHB9_IRQ_LEVEL_LPC_SIRQ1 PPC_BIT(7) +#define PSIHB9_IRQ_LEVEL_LPC_SIRQ2 PPC_BIT(8) +#define PSIHB9_IRQ_LEVEL_LPC_SIRQ3 PPC_BIT(9) +#define PSIHB9_IRQ_LEVEL_LPC_SIRQ4 PPC_BIT(10) +#define PSIHB9_IRQ_LEVEL_SBE_I2C PPC_BIT(11) +#define PSIHB9_IRQ_LEVEL_DIO PPC_BIT(12) +#define PSIHB9_IRQ_LEVEL_PSU PPC_BIT(13) +#define PSIHB9_IRQ_LEVEL_I2C_C PPC_BIT(14) +#define PSIHB9_IRQ_LEVEL_I2C_D PPC_BIT(15) +#define PSIHB9_IRQ_LEVEL_I2C_E PPC_BIT(16) +#define PSIHB9_IRQ_LEVEL_SBE PPC_BIT(19) + +#define PSIHB9_IRQ_STAT 0x80 /* P bit */ +#define PSIHB9_IRQ_STAT_PSI PPC_BIT(0) +#define PSIHB9_IRQ_STAT_OCC PPC_BIT(1) +#define PSIHB9_IRQ_STAT_FSI PPC_BIT(2) +#define PSIHB9_IRQ_STAT_LPCHC PPC_BIT(3) +#define PSIHB9_IRQ_STAT_LOCAL_ERR PPC_BIT(4) +#define PSIHB9_IRQ_STAT_GLOBAL_ERR PPC_BIT(5) +#define PSIHB9_IRQ_STAT_TPM PPC_BIT(6) +#define PSIHB9_IRQ_STAT_LPC_SIRQ1 PPC_BIT(7) +#define PSIHB9_IRQ_STAT_LPC_SIRQ2 PPC_BIT(8) +#define PSIHB9_IRQ_STAT_LPC_SIRQ3 PPC_BIT(9) +#define PSIHB9_IRQ_STAT_LPC_SIRQ4 PPC_BIT(10) +#define PSIHB9_IRQ_STAT_SBE_I2C PPC_BIT(11) +#define PSIHB9_IRQ_STAT_DIO PPC_BIT(12) +#define PSIHB9_IRQ_STAT_PSU PPC_BIT(13) + +static void pnv_psi_notify(XiveNotifier *xf, uint32_t srcno) +{ + PnvPsi *psi = PNV_PSI(xf); + uint64_t notif_port = psi->regs[PSIHB_REG(PSIHB9_ESB_NOTIF_ADDR)]; + bool valid = notif_port & PSIHB9_ESB_NOTIF_VALID; + uint64_t notify_addr = notif_port & ~PSIHB9_ESB_NOTIF_VALID; + + uint32_t offset = + (psi->regs[PSIHB_REG(PSIHB9_IVT_OFFSET)] >> PSIHB9_IVT_OFF_SHIFT); + uint64_t lisn = cpu_to_be64(offset + srcno); + + if (valid) { + cpu_physical_memory_write(notify_addr, &lisn, sizeof(lisn)); + } +} + +static uint64_t pnv_psi_p9_mmio_read(void *opaque, hwaddr addr, unsigned size) +{ + PnvPsi *psi = PNV_PSI(opaque); + uint32_t reg = PSIHB_REG(addr); + uint64_t val = -1; + + switch (addr) { + case PSIHB9_CR: + case PSIHB9_SEMR: + /* FSP stuff */ + case PSIHB9_INTERRUPT_CONTROL: + case PSIHB9_ESB_CI_BASE: + case PSIHB9_ESB_NOTIF_ADDR: + case PSIHB9_IVT_OFFSET: + val = psi->regs[reg]; + break; + default: + qemu_log_mask(LOG_GUEST_ERROR, "PSI: read at 0x%" PRIx64 "\n", addr); + } + + return val; +} + +static void pnv_psi_p9_mmio_write(void *opaque, hwaddr addr, + uint64_t val, unsigned size) +{ + PnvPsi *psi = PNV_PSI(opaque); + Pnv9Psi *psi9 = PNV9_PSI(psi); + uint32_t reg = PSIHB_REG(addr); + MemoryRegion *sysmem = get_system_memory(); + + switch (addr) { + case PSIHB9_CR: + case PSIHB9_SEMR: + /* FSP stuff */ + break; + case PSIHB9_INTERRUPT_CONTROL: + if (val & PSIHB9_IRQ_RESET) { + device_reset(DEVICE(&psi9->source)); + } + psi->regs[reg] = val; + break; + + case PSIHB9_ESB_CI_BASE: + if (!(val & PSIHB9_ESB_CI_VALID)) { + if (psi->regs[reg] & PSIHB9_ESB_CI_VALID) { + memory_region_del_subregion(sysmem, &psi9->source.esb_mmio); + } + } else { + if (!(psi->regs[reg] & PSIHB9_ESB_CI_VALID)) { + memory_region_add_subregion(sysmem, + val & ~PSIHB9_ESB_CI_VALID, + &psi9->source.esb_mmio); + } + } + psi->regs[reg] = val; + break; + + case PSIHB9_ESB_NOTIF_ADDR: + psi->regs[reg] = val; + break; + case PSIHB9_IVT_OFFSET: + psi->regs[reg] = val; + break; + default: + qemu_log_mask(LOG_GUEST_ERROR, "PSI: write at 0x%" PRIx64 "\n", addr); + } +} + +static const MemoryRegionOps pnv_psi_p9_mmio_ops = { + .read = pnv_psi_p9_mmio_read, + .write = pnv_psi_p9_mmio_write, + .endianness = DEVICE_BIG_ENDIAN, + .valid = { + .min_access_size = 8, + .max_access_size = 8, + }, + .impl = { + .min_access_size = 8, + .max_access_size = 8, + }, +}; + +static uint64_t pnv_psi_p9_xscom_read(void *opaque, hwaddr addr, unsigned size) +{ + /* No read are expected */ + qemu_log_mask(LOG_GUEST_ERROR, "PSI: xscom read at 0x%" PRIx64 "\n", addr); + return -1; +} + +static void pnv_psi_p9_xscom_write(void *opaque, hwaddr addr, + uint64_t val, unsigned size) +{ + PnvPsi *psi = PNV_PSI(opaque); + + /* XSCOM is only used to set the PSIHB MMIO region */ + switch (addr >> 3) { + case PSIHB_XSCOM_BAR: + pnv_psi_set_bar(psi, val); + break; + default: + qemu_log_mask(LOG_GUEST_ERROR, "PSI: xscom write at 0x%" PRIx64 "\n", + addr); + } +} + +static const MemoryRegionOps pnv_psi_p9_xscom_ops = { + .read = pnv_psi_p9_xscom_read, + .write = pnv_psi_p9_xscom_write, + .endianness = DEVICE_BIG_ENDIAN, + .valid = { + .min_access_size = 8, + .max_access_size = 8, + }, + .impl = { + .min_access_size = 8, + .max_access_size = 8, + } +}; + +static void pnv_psi_power9_irq_set(PnvPsi *psi, int irq, bool state) +{ + uint32_t irq_method = psi->regs[PSIHB_REG(PSIHB9_INTERRUPT_CONTROL)]; + + if (irq > PSIHB9_NUM_IRQS) { + qemu_log_mask(LOG_GUEST_ERROR, "PSI: Unsupported irq %d\n", irq); + return; + } + + if (irq_method & PSIHB9_IRQ_METHOD) { + qemu_log_mask(LOG_GUEST_ERROR, "PSI: LSI IRQ method no supported\n"); + return; + } + + /* Update LSI levels */ + if (state) { + psi->regs[PSIHB_REG(PSIHB9_IRQ_LEVEL)] |= PPC_BIT(irq); + } else { + psi->regs[PSIHB_REG(PSIHB9_IRQ_LEVEL)] &= ~PPC_BIT(irq); + } + + qemu_set_irq(psi->qirqs[irq], state); +} + +static void pnv_psi_power9_reset(void *dev) +{ + Pnv9Psi *psi = PNV9_PSI(dev); + + pnv_psi_reset(dev); + + if (memory_region_is_mapped(&psi->source.esb_mmio)) { + memory_region_del_subregion(get_system_memory(), &psi->source.esb_mmio); + } +} + +static void pnv_psi_power9_instance_init(Object *obj) +{ + Pnv9Psi *psi = PNV9_PSI(obj); + + object_initialize_child(obj, "source", &psi->source, sizeof(psi->source), + TYPE_XIVE_SOURCE, &error_abort, NULL); +} + +static void pnv_psi_power9_realize(DeviceState *dev, Error **errp) +{ + PnvPsi *psi = PNV_PSI(dev); + XiveSource *xsrc = &PNV9_PSI(psi)->source; + Error *local_err = NULL; + int i; + + /* This is the only device with 4k ESB pages */ + object_property_set_int(OBJECT(xsrc), XIVE_ESB_4K, "shift", + &error_fatal); + object_property_set_int(OBJECT(xsrc), PSIHB9_NUM_IRQS, "nr-irqs", + &error_fatal); + object_property_add_const_link(OBJECT(xsrc), "xive", OBJECT(psi), + &error_fatal); + object_property_set_bool(OBJECT(xsrc), true, "realized", &local_err); + if (local_err) { + error_propagate(errp, local_err); + return; + } + + for (i = 0; i < xsrc->nr_irqs; i++) { + xive_source_irq_set_lsi(xsrc, i); + } + + psi->qirqs = qemu_allocate_irqs(xive_source_set_irq, xsrc, xsrc->nr_irqs); + + /* XSCOM region for PSI registers */ + pnv_xscom_region_init(&psi->xscom_regs, OBJECT(dev), &pnv_psi_p9_xscom_ops, + psi, "xscom-psi", PNV9_XSCOM_PSIHB_SIZE); + + /* MMIO region for PSI registers */ + memory_region_init_io(&psi->regs_mr, OBJECT(dev), &pnv_psi_p9_mmio_ops, psi, + "psihb", PNV9_PSIHB_SIZE); + + pnv_psi_set_bar(psi, psi->bar | PSIHB_BAR_EN); + + qemu_register_reset(pnv_psi_power9_reset, dev); +} + +static void pnv_psi_power9_class_init(ObjectClass *klass, void *data) +{ + DeviceClass *dc = DEVICE_CLASS(klass); + PnvPsiClass *ppc = PNV_PSI_CLASS(klass); + XiveNotifierClass *xfc = XIVE_NOTIFIER_CLASS(klass); + + dc->desc = "PowerNV PSI Controller POWER9"; + dc->realize = pnv_psi_power9_realize; + + ppc->chip_type = PNV_CHIP_POWER9; + ppc->xscom_pcba = PNV9_XSCOM_PSIHB_BASE; + ppc->xscom_size = PNV9_XSCOM_PSIHB_SIZE; + ppc->bar_mask = PSIHB9_BAR_MASK; + ppc->irq_set = pnv_psi_power9_irq_set; + + xfc->notify = pnv_psi_notify; +} + +static const TypeInfo pnv_psi_power9_info = { + .name = TYPE_PNV9_PSI, + .parent = TYPE_PNV_PSI, + .instance_size = sizeof(Pnv9Psi), + .instance_init = pnv_psi_power9_instance_init, + .class_init = pnv_psi_power9_class_init, + .interfaces = (InterfaceInfo[]) { + { TYPE_XIVE_NOTIFIER }, + { }, + }, +}; + static void pnv_psi_class_init(ObjectClass *klass, void *data) { DeviceClass *dc = DEVICE_CLASS(klass); @@ -549,7 +903,7 @@ static void pnv_psi_class_init(ObjectClass *klass, void *data) xdc->dt_xscom = pnv_psi_dt_xscom; - dc->realize = pnv_psi_realize; + dc->desc = "PowerNV PSI Controller"; dc->props = pnv_psi_properties; } @@ -557,8 +911,9 @@ static const TypeInfo pnv_psi_info = { .name = TYPE_PNV_PSI, .parent = TYPE_SYS_BUS_DEVICE, .instance_size = sizeof(PnvPsi), - .instance_init = pnv_psi_init, .class_init = pnv_psi_class_init, + .class_size = sizeof(PnvPsiClass), + .abstract = true, .interfaces = (InterfaceInfo[]) { { TYPE_PNV_XSCOM_INTERFACE }, { } @@ -568,6 +923,20 @@ static const TypeInfo pnv_psi_info = { static void pnv_psi_register_types(void) { type_register_static(&pnv_psi_info); + type_register_static(&pnv_psi_power8_info); + type_register_static(&pnv_psi_power9_info); } -type_init(pnv_psi_register_types) +type_init(pnv_psi_register_types); + +void pnv_psi_pic_print_info(Pnv9Psi *psi9, Monitor *mon) +{ + PnvPsi *psi = PNV_PSI(psi9); + + uint32_t offset = + (psi->regs[PSIHB_REG(PSIHB9_IVT_OFFSET)] >> PSIHB9_IVT_OFF_SHIFT); + + monitor_printf(mon, "PSIHB Source %08x .. %08x\n", + offset, offset + psi9->source.nr_irqs - 1); + xive_source_pic_print_info(&psi9->source, offset, mon); +} |